Allan e



(No Model.)

Patented Oct. 27, 1891.

UNITED STATES PATENT OFFICE.

ALLAN E. FRANCIS, OF CLEVELAND, OHIO.

PICK.

SPECIFICATION forming part of Letters Patent No. 461,881, dated October27, 1891.

Application filed December 8, 1890- Serial Ila-373,356. (No model.)

To all whom it may concern.-

Be it known that I, ALLAN E. FRANCIS, a citizen of the United States,residing at Cleveland, in the county of Ouyahoga and State of.

Ohio, have invented a new and useful Pick, of which the following is aspecification.

Myinvention relates to picks such as are used in mines for loosening andbreaking up coal and ores and as a useful tool elsewhere in looseningclay, earth,stone, &c. and it consists of improvements oninventions forwhich applications for United States patents were filed October 11,1890, Serial No. 367,884, and October 27, 1890, Serial No. 369,336.

The objects of my improvements are, first, to provide lugs for securingthe pick-head to the socket, made of strong and practicallynon-corrodible metal, preferably of aluminum or its alloys. Lugs formedof iron and being a part of the pick-head, as those shown by thedrawings in above-named applications and reproduced here, are not onlyliable to become too rough for use by being badly corroded when leftindamp places, but when formed with the grain of the iron are apt to beweakened by flaws and if broken render the head useless. To obviatethese difficulties the lug hereinafter described is supposed complete.Second, to provide a more useful latch for locking the pick-head to thesocket than that shown in application above named and numbered 369,336,which requires a longer socket than that shown to get sufficient lengthof sliding surface to allow the latch to act freely without catching atthe ends and becoming wedged in its bearings. It is thought that thisdifficulty is fully overcome by the latch and its bearing shown anddescribed in these presents.

In the accompanying drawings, Figure 1 is a side elevation of a pickwith head in vertical position, the point and handle being cut awaytoallow larger scale, showing the abovementioned lugs and latch in theirrespective places. Fig. 2 is a sectional view of Fig. 1

cut longitudinally and vertically on the median line. Fig. 3 is a sideelevation with head in horizontal position. Fig. 4 is a sectional viewof Fig. 3, cutting it in halves at right angles to Fig. 2. Fig. 5 showsmode of detachin g the head from the socket, (seen started at 7%,) thebroken lines showing position of latch c with reference to the lugs inthe operation. Figs. 6, 7, and 10 are perspective views showing improvedlugs and mode of attaching same to head. Figs. 8 and 11 show rolled barsof met-a1 and way of forming lugs therefrom. Fig. 9 is a section of B,Fig. 8, on line 1 and 2.

D shows a lug made by rolling suitable metal into bars R, with tongueformed to fit grooves in socket. From these bars the lugs are milled orcut, as shown at m, the dovetail being rolled or milled, as shown at a.Head A being counter-milled at d, lug D is driven into cavity 61 withforce enough to hold it permanently. The new form of latch is shown bye, and 19 its bearing. Latch eis hinged at 19, its free end swinging toclear lug in act of detaching the pick head, as shown by broken lines inFig. 5. hen released, latch e is thrown back into position by spring S"against stop formed by edge of socket-lngs at is, thus forming a latchwith free action.

What I do claim as my invention, and desire to secure by Letters Patent,is

A pick-head provided with two dovetailed lugs made and insertedsubstantially as shown, having tongues for corresponding grooves in thesocket, and a socket provided with grooves for the tongues on the lugsso attached, the socket when engaged with the lugs being locked inposition by thelatch e, hinged at p, and engaging with lugs D and thesides of the socket, as set forth.

ALLAN E. FRANCIS.

Witnesses:

JENNY L. FRANCIS, M. M. FRANCIS.

